Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It has a density of 16.4 grams per cubic centimeter and a molecular weight of180.948 g/mol. What is the atomic radius of Ta if it adopts the body centered cubic unitstructure.

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Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter21: The Chemistry Of The Main Group Elements

Section: Chapter Questions

Problem 122SCQ

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Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It has a density of 16.4 grams per cubic centimeter and a molecular weight of 180.948 g/mol. What is the atomic radius of Ta if it adopts the body centered cubic unit structure.
A hypothetical element, Le, has a body-centered cubic structure with a density of 7.89 g/cm3. Calculate its atomic radius in pm. Atomic Mass: Le: 58.348 g/mol Round to 2 decimal places
A hypothetical metal has the BCC crystal structure, a density of 7.24 g/cm3, and an atomic weight of 48.9 g/mol. The atomic radius of this metal is 0.122 nm 0.0997 nm 1.22 nm 0.154 nm
A hypothetical element, Ny, forms a face-centered cubic lattice with an atomic radius of 165 pm. Calculate the density of the element in g/cm3. Atomic Mass: Ny: 112.024 g/mol Round to 2 decimal places.
The density of gold is 19.31 g/cm3. If the metallic radius of gold is 407.9 pm, what is the structure of metallic gold?
Chromium has a density of 7.19 g/cm3 and crystallizes in a body-centered cube. What is the atomic radius of chromium in picometers?
Identify the crystal structure of all metals. Assign a symbol on each crystal structure type (color-coded or shape-coded). Draw a table (table of element look-a-like) with their element symbols and their crystalstructure type symbols. Except lanthanides and actinides.
A hypothetical element, Ny, forms a face-centered cubic lattice with an atomic radius of 152 pm. Calculate the density of the element in g/cm3.Atomic Mass: Ny: 116.729 g/mol Round your answer to 2 decimal places.
As you move down a family (group) of the periodic table the size of atoms increases from period 2 to period 3 by about 30-40 pm. For example, the radius of B is 84 pm and the radius of Al is 121 pm. However, as you move from aluminum (radius of 121 pm) to gallium (radius of 122 pm) the radius only increases by 1 pm. Which of the following explains this small increase in radius from Al to Ga? Select one: a. the scandide contraction b. the lanthanide contraction c. the mercurate elongation d. the zincate elongation e. Aluminum is just larger than you might expect.
Which process in the diagram below shows phosphorescence? A. 1 B. 3 C. 5 D. 4
Iron (atomic radius = 124 pm) crystallizes in a body-centered structure. Calculate the density of Iron.

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ray, resistant. It has a density of 16.4 grams per cubic centimeter and a molecular weight of 180.948 g/mol. What is the atomic radius of Ta if it adopts the body centered cubic unit structure.